#include<iostream>
#include<stdio.h> 
#include<cmath>
using namespace std;
int main()
{int f(int m);
 int k;
 while(cin>>k)
 {if(k==0)  break;
  for(int i=1;i<=k/2;i=i+2)
     {if(f(i)&&f(k-i))    {cout<<k<<" "<<"="<<" "<<i<<" "<<"+"<<" "<<k-i<<endl;break;}
          else continue;
      }  
  }
 system("pause");
 return 0;
} 

int f(int m)
{if(m==1)  return 0;
 int j=2;
 double  k=sqrt((double) (m));
 while(j<=k&&m%j!=0)
    j++;
 if(j>k) return 1;
 else return 0;
}
 
